From my experience in secondary school
Diarrhea will get 1 day, maybe because i didnt act good
enough
Flu, Cough, Fever i take before 2 days
Bad headache never tried before
Fake sore eyes got 3 days from private clinic, not
polyclinic
Depending on doctor, some doctor i request 2 day they say
cannot
some dun care just print 2 day
Migraine, i got 4 days of MC